Hello. This is a basic stage, so everything works in the first plane, no extra threads of execution. Thus, if you use some heavy behaviours like "a-antialiasing" or "d-depth of field" it can take a long to complete and the program won't respond until finished. Each key you use activates one behaviour, this key again deactivates it.

Each behaviour activated and every extra level of the sphere flake involve more time consuming. Nevertheless with one light it could be rasonably fast.

I would suggest use the "4" key to reach the fourth level of the sphere flake and hit twice the "L" to turn on three lights (maybe it is best viewed with three lights that with only one), maybe then "r" for reflects.

These are the keys what you can interact with the program:- a/A. Antialiasing- d/D. Depth of field- r/R. Reflection- l/L. Increase the number of lights (max=3)- k/K. Decrease the number of lights (min=1)- 1,2,3,4. The level of iterations for the sphere flake

Hi Horacio. k/K for decrease the number of lights (the second r). It works fine in my W7 and WXP. Maybe the problem is because all the execution is in first plane, don't use threads. Some works takes a long and it is needed to wait a bit.

Thank you for report it:t

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Well, this is what a basic stage is for. Each behaviour activated means more time consuming (for example "a" activates antialiasing, "a" again deactivates it). With one light and no other adding is reasonably fast. Each level in the sphere flake add many more spheres which involves more calculations to find the impacts of the light rays with them. Maybe it is best viewed with three focus of light (three "L"). It is specially slow the use of "a-antialiasing" or "d-depth of field". Each time you choose an option everything is built again, what could be surely improved.

Thank you

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En un lugar de la Mancha de cuyo nombre no quiero acordarme

- There are 10 kind of people: those who know binary numbers and those who don't -